Pump.



w. M. FRASER. PUMP APPLICATION HLED )ULY 28. I915.

Patented Oct. 3, 1916.

2 SHEETS-SHEET 1.

' W M Frc'aser A 1701mm w. M. FRASER.

' PUMP.

APPLICATION FILED JULY 28,1915. 11,200,337. Patented Oct. 3,1916.

2 SHEETS-SHEEI 2.

W/ TNESSES I/VVE/VTOI? FF'Q 11 TTORA/EYS Wall of the tank, as shown in Figs. 1, 2 and 3, and thereby I prevent any chilling effect upon the liquid end of the pump from the atmospheric condition on the outside of the tank. The means I prefer to employ to make the connection of the parts through the tank Wall consists of the following members: At I show a spool-like thimble having a flange 21 rigidly by means of bolts 22 or the like to the end. of the pump cylinder 15 and having a central hole through which the piston rod 18 passes. cored out'to receive suitable packing material 23, and surrounding the same and spaced outwardly from the flange 21 is a plate or flange 24 adapted to clamp squarely against the tank wall on its inner surface.

The thimble also includes a spud 25 which is.

projected directly and to the outer agland cap 26.

engine is clamped by means of holes 28 or their equivalent through the tank wall and through the tank Wall end of the spud is secured squarely against the flange 24 above de-V scribed.

Lshow in Fig. 6 the liquid end of the pump 11 With its cylinder 15 fitted squarely against the inner surface of the tank, While occupying the position above described in connection with the plate or flange 24. The pump fran1e'27 is therefore fitted more directly to the liquid end of the pump through the wall and by means of the connections 28 just described. This arrangement of pump and tank is also Well adapted for handling volatile liquids, such as naphtha or ammonia because it is diilicult to pump such liquids at its inner end secured- The interior of the thimble'is' from the steam motor The frame 27 of thesteam with a pump at a distance from the tank, especially when the suction head very great. It is also well adapted tor handling sulfuric acid of a high degree of purity, since such acid does not attack the metal. of the pump at a place where the liquid remainlng in the pump cannot absorb 1noisture and weaken.

1. The combination. with a. tank for hot viscous liquids, of pumping mechanism therefor comprising the liquid end of the pump having a reci1wocating piston Within the tank, a. reciprocating steam motor on the outside of the tank, a piston rod leading to the pump piston through the tank Wall, and liquid-tight connections between the pumping mechanism and the pump wall.

2. The combination with a. tank for con taining and dispensing hot viscous liquids,

of a liquid pump within the tank and spaced inwardly from the Wall thereof, a spooldike thimble having one end connected to the pump cylinder and the other end fitted squarely against the tank well, said thimble including also a spud projecting through the Wall, a reciprocating steam engine on the outside of the tank, from the engine thri'mgh said spud and thimble to the liquid pump, and means to rigidly secure the steam engine to the outer surface of the tank Wall around said spud, substantially as set forth.

VHJLIAM IvlOltltlSON FRASER; Witnesses NELS. H. Johnson, Sims. 3'. Genes.

a piston rod leading 

